《哈利·波特與混血王子》是“哈利·波特”繫列的其中一部，本書為英文原版。
隨著黑暗勢力的擴張，麻瓜世界和魔法世界同時陷入了伏地魔的魔爪之中，連霍格沃茨魔法學校都不再是安全的避風港了。哈利懷疑危險就在霍格沃茨城堡內，而校長鄧不利多則一心一意希望哈利能為即將到來的太決戰做好準備。他們兩人聯手尋找破解伏地魔防御術的鑰匙，為了達成這一目的，鄧不利多將他的老朋友兼舊同事霍拉斯·斯拉格霍恩招回了霍格沃茨魔法學校。因為他相信此人掌握著一個*為關鍵的秘密。盡管大敵當前，哈利、羅恩和赫敏卻紛紛情竇初開，初戀的甜蜜氣息飄蕩在魔法教室的空氣中。然而。等待著他們的卻是無盡的黑暗與危險，霍格沃茨魔法學校將從此被**改變。

It is Harry Potter's sixth year at Hogwarts School of Witchcraft and Wizardry. As Voldemort's sinister forces amass and a spirit of gloom and fear sweeps the land, it becomes more and more clear to Harry that he will soon have to confront his destiny. But is he up to the challenges ahead of him? In this dark and breathtaking adventure, J.K. Rowling skilfully begins to unravel the complex web she has woven, as we discover more of the truth about Harry, Dumbledore, Snape and, of course, He who must not be named...